The EASYLAMP® is the only water cooled lamp that is directly interchangeable by the operator in only 10 seconds. This avoids the device being temporarily unusable until a technician arrives to deal with it. The optical blocks, interchangeable in only 5 seconds, one of 8.25cm² is the biggest on the market which saves time and increases profitability. A train of pulses brings more comfort and safety towards treating darker skin tanned skin and mixed skins up to phototype VI. A square pulse allows controlled and instant power which gives effective and long lasting results. Balanced pulses evenly distribute the energy for comfort. An evolved monitoring system with straight forward updates that can be implemented by the user themselves. The USB port allows the network and the transfer of information. The SD card reader allows updates which can be done on-site. Profile management: allows the same device to be used by several employees with different levels of access to different treatments. Preprogrammed treatment protocols: optimised, secure and effective and even more. This innovations all have several certifications, marks, labels and patents.